Portable Ultrasonic Thermometer with Humidity Correction and Audible Sound Thermometry

This paper presents portable ultrasonic thermometer developments in humidity and transducer inertia correction. It describes humidity effect on the speed of sound and a method for it correction. Transducer inertia is also described and shown on real measurements, along with a corrective method. Experimental measurement results are presented. Also, audible sound thermometry and its potential advantages and drawbacks are discussed and a simple audible sound preliminary measurement is conducted.